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ALX Cable Stair Rail Bottom Post Kit

SKU: 399177P
QTY Available: 256
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ALX Cable Stair Rail Bottom Post Kit

Product Highlights

  • Part of the Deckorators ALX Cable Railing system
  • Use to terminate a run of cable on a stair rail
  • Less hassle – post is predrilled on 1 side for cable
  • Hardware is hidden inside for a clean look
  • You’ll also get matching post base trim & post cap
  • Choose 49 in. or 54 in. post in 4 durable powder-coated finishes
View Product Details

Product Details

Color Textured Black
Length 2.5 inches
Material Powder-coated aluminum
Width 2.5 inches
Height 49 inches
What Is Included 1 bottom stair post, post trim, and post cap
Nominal Dimensions 2.5 in. x 2.5 in. x 49 in.
Brand Deckorators
Contact Type
Vendor Ship Profile expected to ship within 5-7 business days
Pressure Treated Chemical
Return Policy This item is returnable if in original condition.
Can Be Used With ALX Cable Stair Rail Middle Post Kit
ALX Cable Rail Kit

Product Overview

If you’re installing Deckorators® sleek ALX Cable Railing on stairs, you’ll need to put this post at the bottom of your stair rail. It's predrilled on one side (this is the side where you will pull the cables through and terminate the run). You'll need to drill the holes on the opposing side (so they'll align with your stair incline). The hardware that tightens and secures the cables is hidden in the post.

The post is heavy-gauge aluminum, thickly powder-coated for a uniform, durable, hard finish that weathers outdoor exposure beautifully. Post has a leveling plate and predrilled aluminum base. Post fasteners are not included. A matching post cap and post base trim are included to finish your post. You can replace the included post cap with a lighted post cap if you wish (sold separately).

Choosing your post: Note that the Bottom Post needs to be taller than the Top Post. To determine the height you need, add the deck rail height + stair riser height. Post can be trimmed.

To complete your cable stair railing project, you will need a Top Rail Kit, Line or End Posts for the top, Middle Stair Posts, and Cable Kits.

Helpful to have: Mandrel & Wheel kit to trim cable cleanly, Cable Release Key to release cable tension in case of mistakes.


  • Limited lifetime warranty on manufacturing & powder-coating defects
  • 25-year removal & replacement warranty
  • 10-year limited salt & coastal water limited warranty

Installation instructions can be found here.